#import <Foundation/Foundation.h>

@interface FunTest : NSObject

- (NSNumber *)multiplay:(NSNumber *)a withB:(NSNumber *) b;

@end

@implementation FunTest

- (NSNumber *)multiplay:(NSNumber *)a withB:(NSNumber *) b{

    float number1 = [a floatValue];
    float number2 = [b floatValue];
    
    float r = number1 * number2;
    NSNumber *result = [NSNumber numberWithFloat:r];
    return  result;
}

@end

int main() {

   

    FunTest *funTest = [[FunTest alloc]init];

    NSNumber *a = [NSNumber numberWithFloat:10.2];
    NSNumber *b = [NSNumber numberWithFloat:2.2];
    NSNumber *result = [funTest multiplay:a withB:b];
    NSString *str = [result stringValue];
    NSLog(@"%@",str);
    
   return 0;
}


